Where does the word panem come from?

The Word "panem" is Latin for "bread." It is famously used in the phrase "panem et circenses," meaning "bread and circuses," which refers to the provision of basic needs and entertainment to appease the populace. The term gained broader cultural significance through its use in Suzanne Collins' "The Hunger Games," where "Panem" is the name of the dystopian nation in the story.